Metal complexes of guanidine-substituted alkyl ligands
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Abstract
Single-crystal X-ray diffraction of MC(SiMe3)(2)(SiMe(2)hpp) (M = Li, K; hppH = 1,3,4,6,7,8,-hexahydro-2H-pyrimido[1,2-a]pyrimidine) showed nonsolvated organometallic compounds in which the iminonitrogen of the guanidine forms strong intramolecular bonds to generate six-membered metallacycles.